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authorThomas Fleury <tfleury@nvidia.com>2017-04-11 16:43:24 -0400
committermobile promotions <svcmobile_promotions@nvidia.com>2017-04-18 19:14:49 -0400
commitf4e36283437ff5dfcac08205aa994c62d95e1d21 (patch)
tree0f8df44fe8551edab0fac94c850aac34724a2be5 /drivers/gpu/nvgpu/common
parent03e7ef2657b4de22eff521b3e44fc4ed5cdf4dca (diff)
gpu: nvgpu: clip target frequencies in arbiter
It is currently possible to set GPCCLK lower than the minimum allowed frequency. Clip target GPCCLK/MCLK according to valid min/max range in arbiter. We could do this before submitting request to arbiter, but then we would loose information on the requested target frequency. Instead, we cache the clock range in arbiter context, and check target frequency when running arbiter. Bug 200288036 Change-Id: I29f5176e6365a926d1041430c05a63f0c8447e2b Reviewed-on: http://git-master/r/1460834 (cherry picked from commit eb626903e4fc046fe1f0eaee703c857e9a0f2b4d) Signed-off-by: Thomas Fleury <tfleury@nvidia.com> Reviewed-on: http://git-master/r/1461715 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
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